Study on Extraction of Liposoluble Components from Rhodiola L by Supercritical Carbon Dioxide

Abstract

Abstract: A technology of extracting concretes from the Rhodiola L with supercritical carbon dioxide is described. The effects of entrainer, extraction temperature,extraction pressure and extraction time on general rate of extraction is systematically investigated. The optimum operating conditions are confirmed. The result shows:the order of sequence of factors is extraction pressure>entrainer concentration>time >temperature. The optimum operating conditions are extraction pressure 30MPa, entrainer concentration 80%, time 120min, temperature 45℃. The extract was analyzed by gas chromatograph-mass spectrometry. In extract components were indentified, main components of this extrct were alcohol ester alkane, aldehyde.

Key words: , supercritical carbon dioxide extraction； Rhodiola L； GC-MS；

GONG Gang-Ming, Liu-Yu-Mei. Study on Extraction of Liposoluble Components from Rhodiola L by Supercritical Carbon Dioxide[J]. FOOD SCIENCE, 2006, 27(10): 388-391.

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Study on Extraction of Liposoluble Components from Rhodiola L by Supercritical Carbon Dioxide

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